Results 41 to 50 of about 42,553 (297)
Twisting phase and intensity of light with plasmonic metasurfaces [PDF]
Scientific Reports, 2018 AbstractTwisting light in both phase and intensity has recently drawn great interests in various fields related to light-matter interactions such as optical manipulation of particles and quantum entanglement of photons. Conventionally, bulky optical components are required to produce such twisted optical beams, which significantly limits their ...
Yuchao Zhang, Xiaodong Yang, Jie Gao
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Propagation Characteristics of a Twisted Cosine-Gaussian Correlated Radially Polarized Beam
Applied Sciences, 2018 Recently, partially coherent beams with twist phases have attracted growing interest due to their nontrivial dynamic characteristics. In this work, the propagation characteristics of a twisted cosine-Gaussian correlated radially polarized beam such as ...
Jipeng Zhang +6 more
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Indication of a twist-grain-boundary-twist-bend phase of flexible core bent-shape chiral dimers [PDF]
, 2019 The effect of the molecular chirality of chiral additives on the nanostructure of the twist-bend nematic (NTB) liquid crystal phase with ambidextrous chirality and nanoscale pitch due to spontaneous symmetry breaking is studied.
Norman, Victoria +14 more
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Formulation of the twisted-light–matter interaction at the phase singularity: The twisted-light gauge [PDF]
Physical Review A, 2015 Twisted light is light carrying orbital angular momentum. The profile of such a beam is a ring-like structure with a node at the beam axis, where a phase singularity exits. Due to the strong spatial inhomogeneity the mathematical description of twisted-light--matter interaction is non-trivial, in particular close to the phase singularity, where the ...
Quinteiro, Guillermo Federico +2 more
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The role of intermolecular interactions in stabilizing the structure of the nematic twist-bend phase
, 2021 The understanding of the relationship between molecular structure and the formation of the nematic twist-bend phase is still at an early stage of development.
Merkel, Katarzyna +10 more
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Twist effects on quantum vortex defects [PDF]
, 2021 We demonstrate that on a quantum vortex in Bose-Einstein condensates can form a new, central phase singularity. We define the twist phase for isophase surfaces and show that if the injection of a twist phase is global this phenomenon is given by an ...
Foresti, Matteo
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Extremely small twist elastic constants in lyotropic nematic liquid crystals
, 2020 Recent measurements of the elastic constants in lyotropic chromonic liquid crystals (LCLCs) have revealed an anomalously small twist elastic constant compared to the splay and bend constants.
Giesselmann, F. +11 more
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Twist-bend nematic phase in cyanobiphenyls and difluoroterphenyls bimesogens [PDF]
, 2017 The paper reviews assignment of the low-temperature nematic phase observed in simple bimesogenic or dimeric systems based on cyanobiphenyls and difluoroterphenyls to the twist-bend nematic phase, NTB, using a range of experimental techniques.
Mehl, Georg H. +2 more
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Crystals, 2021 The twist-bend nematic phase (NTB) exhibits a complicated hierarchy of structures responsible for several intriguing properties presented here. These are: the observation of a fast electrooptic response, the exhibition of a large electroclinic effect ...
Vitaly P. Panov +3 more
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Local phase structure of wave dislocation lines: twist and twirl
, 2004 Generic wave dislocations (phase singularities, optical vortices) in three dimensions have anisotropic local structure, which is analysed, with emphasis on the twist of surfaces of equal phase along the singular line, and the rotation of the local ...
Dennis, MR +3 more
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